Those of you tanning or burning your skin this summer should stop — seek the shade, wear a hat and some sunscreen and, whatever you do, stay out of indoor tanning salons. It's a familiar skin-cancer prevention message, but it's coming from a new source: the office of the U.S. Surgeon General.

The call to action from acting Surgeon General Boris Lushniak, released Tuesday, says that skin cancer is a "major public health problem" and that too much exposure to indoor and outdoor ultraviolet light is a major cause. It comes just two months after the Food and Drug Administration announced it will soon require labels on tanning beds and lamps warning against use by anyone younger than 18.

But more action is needed, because skin cancers in the United States, unlike many other cancers, continue to rise, the new report says. Nearly 5 million people in the United States are treated for skin cancer each year, at a cost of $8.1 billion, the report says. About 63,000 cases are the most serious kind, melanoma, and about 6,000 of those cases are directly linked to indoor tanning, the report says.

In an interview, Lushniak said it is time for additional states to join the several that have banned indoor tanning by minors and the 44 with some kind of restrictions.

The report also calls for individuals — of all skin colors — to follow the usual advice for minimizing sun exposure, including using sunscreen, hats and shade. It also says everyone from schools to businesses to urban planners have roles to play in providing shady spaces and making it easier for people to protect themselves.

Glenda Fuster lies in a tanning booth with full spectrum lighting at the head at Run to the Sun tanning salon in Anchorage, Alaska, Wednesday, Dec. 14, 2005, to help her cope with the dark winter days. While some Alaskans defy winter by embracing it, others cope by exposing themselves to bright-light therapy, billed by doctors as highly effective. Others install full-spectrum lighting in their homes and offices. Some people frequent tanning booths. Some take antidepressant medications. Some self-medicate with drugs or alcohol. (AP Photo/Al Grillo)(Photo: AL GRILLO ASSOCIATED PRESS)

The report does not say we should all live in caves. "Enjoy the great outdoors," Lushniak says, "but take steps to protect your skin."

There's some evidence some people are listening to some of the warnings: Indoor tanning use by teens dropped in recent years, according to the Centers for Disease Control and Prevention. The CDC says 12.8% of teens younger than 18 admitted to indoor tanning in 2013, down from 15.6% in 2009.

The World Health Organization called indoor tanning devices cancer-causing in 2009.

The report "is a major step forward in the fight against the epidemic of skin cancer, but the value of this step will be measured in the follow up," says Tim Turnham, executive director of the Melanoma Research Foundation.

The Indoor Tanning Association did not immediately return a call for comment. In past statements, the industry group has disputed the WHO position that tanning devices cause cancer and has also said use by teens should be up to parents, not government.